ABB 609903-T706 Power Shield Protection Relay

ABB 609903-T706 Power Shield Protection Relay is part of ABB’s Power Shield family, a line of protection relays designed to detect faults in electrical distribution and motor‑control circuits and promptly initiate protective actions. Within this lineup, the 609903‑T003 variant is documented as a 600–1600 A configuration, categorized as the standard type SS‑3, with other current‑range options available for different installations. The relay provides fast fault sensing and signaling to trip connected circuit breakers, helping protect equipment and enhance system safety in medium‑ to high‑current applications. Typical applications include feeder and motor protection in industrial facilities and power distribution networks.